About haeundae 해운대고구려
While the war lasted for various yrs, the Jurchen were being in the long run defeated, and surrendered to Yun Gwan. To mark the victory, Normal Yun built 9 fortresses on the northeast on the border. In 1108, on the other hand, Standard Yun was provided orders to withdraw his troops by the new ruler, King Yejong. On account of manipulation and court